Table 3.
Fetal mean arterial pressure (MAP), heart rate (HR), PR interval (PR-I), ST interval (ST-I), and QRS duration calculated from the ECG data over 10 min starting at the start of the first and subsequent infusions of oxytocin at 8, 12, 22.5, and 48 h
| MAP, mmHg |
HR, beats/min |
PR-I, ms |
ST-I, ms |
QRS Duration, ms |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Sample time | Control | Cortisol | Control | Cortisol | Control | Cortisol | Control | Cortisol | Control | Cortisol |
| 0 | 50.5 ± 2.8 (7) |
48.7 ± 2.5 (8) |
157 ± 7 (7) |
149 ± 5 (7) |
82.2 ± 4.7 (7) |
81.0 ± 3.7 (7) |
162.7 ± 8.4 (7) |
170.7 ± 5.8 (7) |
36.4 ± 1.6 (7) |
41.6 ± 3.1 (7) |
| 8 h | 51.9 ± 2.4 (7) |
52.3 ± 2.7 (8) |
159 ± 8 (7) |
155 ± 6 (7) |
81.8 ± 4.1 (7) |
83.4 ± 3.0 (7) |
166.0 ± 6.9 (7) |
163.1 ± 6.0 (7) |
37.8 ± 1.2 (7) |
43.3 ± 2.7 (7) |
| 12 h | 52.2 ± 1.5 (7) |
50.8 ± 3.3 (8) |
153 ± 7 (7) |
151 ± 4 (7) |
77.9 ± 2.7 (7) |
79.5 ± 3.2 (7) |
164.0 ± 8.6 (7) |
165.9 ± 6.8 (7) |
38.9 ± 1.2 (7) |
43.2 ± 3.2 (7) |
| 22.5 h | 51.1 ± 2.7 (7) |
50.1 ± 2.8 (8) |
145 ± 5 (7) |
150 ± 6 (7) |
82.1 ± 2.1 (7) |
78.2 ± 3.1 (7) |
168.0 ± 6.7 (7) |
169.8 ± 7.8 (7) |
38.3 ± 1.4 (7) |
41.5 ± 3.4 (7) |
| 48 h | 53.0 ± 3.5 (7) |
52.6 ± 2.4 (8) |
154 ± 8 (7) |
150 ± 4 (7) |
86.4 ± 5.6 (7) |
76.2 ± 3.2 (7) |
161.6 ± 7.0 (7) |
171.3 ± 3.7 (7) |
35.9 ± 1.5 (7) |
44.2 ± 2.6 (7) |
Values are the means over 10 min ± SE (n, number of fetuses).